Rotary power engine



April 165 '1935 1E, 'slLlaEFab/LLUWv 2,998,255

ROTARY POWER ENGINE original Filed Nov. 19, 1929 l 2 sheets-sheet 1 mgl ROTARY POWER ENGINE original Filed Nov. 19, 1929 2 sheets-sheet 2 Z2 v Z4 UZ' Z2 Patented Apr. 16, 1935l www Arswr omer.

n ,J y 1,998,255

n normar rovi/En ENGINE l Eugen Silbermann, Oradeamare, Rumania, as-l signer to Explorctor A. G., Glarus, Switzerland, a corporation of Switzerland continuation of application serial No. 408,199,

November 19, 1929. This application November 8,; 1930, Serial' No. ifhflfi.V In Austria` November 28, .1928' 2' claims. (c1. 25a- 79) e idly on the shaft 5. This disc carries by means This .invention relates to an improved rotary power engine or turbine of the type in which the rotor s-provided with'channels or ducts for the passage of the motive uid, the object of the invention being-toprovide avrotary engine which Fig. 4 is a transverse sectional view taken .ape`

proximately on-the line` IV-IV of Fig, 3.

20 Referring-to Fig. 1a twopart casing I,' 2,en

closes rotors 37 A which are attached toa conimon shait.A The cover portion 2 vof the casing is providedwithan outlet kopening `2e. It will ,be understood that the engine may be equipped with- 25 only, one `rotor or Withmore than two rotors. The rotors are provided with'duots or channels 6; l which traverse the rotors from one lateral surface to the other. These channels are shown developed in the` plane of the drawings, for the 30 sake of simplicity, although they are in fact spatially curved (three-dimensional curves). By the arrangement of the channels according to this configuration it becomes possible to make the channels themselves of any desired shape for 35 adaptation to the conditions of working or to the 8a a valve member 8d is longitudinally slidable,

this valve `being provided with an angular bore This valve is retained in the closing position by a spring 8f.

To the shaft there is keyed a toothed wheel 5a which meshes with a toothed wheel 5b. This latter is connected to a pinion 5c which engages 55 in the internal toothing 5d of a disc 5e which runs is simplein construction and combines the adv of an arm 5f a roller 5g `which' actuatesthe.

The disc'5e is further provided with a roller 5h I,

which actuates a contact device 5i for the sparking plug 5k. y Y

The explosiongases generated in the lchamber 8 first perform work in the channels of the rotor` 3 by direct impulse, pass through the chamber 9 into the channels of the rotor 4 where theyexpand,v collect in the `chamber l0, and nallyescape through the pipe connection`2a. 4 In other words, the gases generated inthe chamber 8 on passing through the channelsexert pressure on the walls thereof the directionof which, in the case of allthe channels, crosses the axis in the same sense of rotation, so'that thev rotor is revolved. Under these circumstances the engine works without a' guide wheel or vanes. The motive fluid acts from the explosion chamber simultaneously upon vall the channels,k since the same enters those channels simultaneously and acts radiatingly from-the centre in all directions. Gudc wheels can be dispensed with, since the portioning' is effected by Ithe regulation of the explosions, and of the number of vexplosions occurring per unit of time. The gases, after having worked in the rotor 3, pass through the annular space 9 into the channels of lthe rotor 4 in which they supply further energy through eX- pansion, after which they are withdrawn` from the collecting chamber I0, if desired by means 'of suction.

Referring to Fig. 2, the rotor consists of a disc Il. The combustion chamber I2 is arranged in this disc itself, this latter also containing the channels is. Adjoining the chamber l2 there is a hollow journal I2a which is mounted in a bearing |217. Adjoining the bearing there is a casing I2c which is connected through a valve I2d with the compressed air pipe IZe, There is fur.-I

ther arranged in the casing I2c a tube I 2f into which the fuel supplied through the pipe line lZh is forcedby means oi'a pump plunger I2g. The valve I2ol and the pump I2g are actuated bya control shaft which is no-t shown inthe drawings, and which is driven through the intermediary of sprocket wheels 5a, 5b and chain fromr the shaft 5.

The chamber 8 or I2 can also serve merely as a feed or collecting chamber. A form of construction embodying this principle is shown in Figs. 3 andfl, in which the rotor is composed of individual tubes I4 which are arranged in starformation adjoining a hollow chamber I5 in the shaft 5. The hollow body is provided with a cylindrical extension i8 into which there fits a hollow journal Il. This hollow journal is provided with a valve I8 which is actuated by a cam disc i9 the shaft 29 of Which is driven from the control shaft 20 through lthe intermediary of gearing which is not shown in the drawings. The control shaft is driven by the tube through the intermef diary of gear Wheels 2 I, 22.

The bearing trunnion or journal is provided on its upper side with an aperture 23 to which the casing 2t of the combustion or explosion chamber adj oins. The compressed 'air supply is controlled by a valve 25 which is actuated by a cam disc 26 keyed to the shaft 2G, `through the intermediary of a tivo-armed lever 2l. The regulation of the fuel supply is effected in the same mani ner, The ignition of the` sparking plug 28 is likewise controlled from the shaft 2G.

The first essential feature of the invention consist's inthe act that the channels proceed from a hollow'chainbe'r disposed in the axis, in the manner of the arms of a medusoid star. .This dennition is to be understood to mean that the channels lie upon a surface of `rotation the generatrices of which have a point oi inexion. In thisrnanner it becomes possible to utilize the potential energy of the driving medium to a very great extent; The driving medium, on entering the channels, exerts a direct irnpulseby impact on the channel wall in the vicinity of the point of inflexion, and acts during its subsequent ow bcth'by expansion and also, on flowing out, by reaction.

in the form of construction shown in `Fig. l the Vchannels lying on a surface of rotation of the described order are subdivided by the chamber 9; the portions of the thus subdivided channels being designated i and 'l respectively.

`The second essential feature oi the invention consists in the fact that the channels are formed of individual tubes adjoining the middle charnber. This `feature enables the machine to be operated Without any separate ycooling means, since the tubes themselves set up movement of the air which eliminates sufficient heat.

The third essential feature of the invention consists in the fact that the rotor is mounted by means of a hollow journal or trunnion which fits intov the bore of the chamber and serves for the admission of the driving medium. This arrangement is more advantageous, sincein this manner the feed channel for the driving medium is smooth and free vof shouldering on its inner surface throughout its entire length, so that eddyformation is eliminated.

The described turbine is particularly suited for use as aninternal combustion turbine, but it is also adapted for use with other motive iiuids (compressed gas, liquid and solid explosive substances, steam, liquids). It is not only adapted for use as a stationary and vehicular engine, but also more particularly as an aeroplane engine, and for the driving of air torpedoes, projectiles and the like.

What I claim iszi l. A rotor for rotary power engines with intermittent admission of the driving fluid comprising a rotatable body provided with a chamber for admission oi the driving fluid disposed at the axis of the rotor, channels proceedingvfrom said chamber outward and curved'both in the directionof rotation and in the direction of the shaft and having a point of inflexion by which the channels aredivided into a foremost or front part acting by impulse and an end part acting by reaction ofthe driving'fluid.

, 2. A rotor for rotary power engines with intermittent admission of they driving iluid comprising a rotatable body provided with a chamber for admission of the driving fluid disposed at the axis of the rotor, channels proceeding from said chamber loutward and curved both` in the vdirection of rotation and in the direction of the shaft and having a point of inflexion by which the channels are divided into a foremost or front part acting by impulse and an end part acting by reaction of the driving iiuid, the channels being formed by tubes connected tosaid chamber.

EUGEN SILBERMANN. 

